1. Re: A response to the dreamers;Hardy,1993
2. Group Discussion: Theory and Technique;Harnack,1964
3. Berge Z. L. and Collins M. P., Computer conferencing and online education. [Online] The Arachnet Electronic Journal of Virtual Culture, 1, 3. Archived at LISTSERV@kentvm as berge.vln3.
4. The Directory of Scholarly Discussion Conferences;Kovac,1995
5. Discussion, Conference, and Group Process;Gulley,1968